I live in Portland as well! Did your service tech try calling ATI direct? Looks like ATI moved B and K production to the same SoCal facility producing the ATI lines of audio products. It seems logical then that hopefully a tech at ATI could have access to B and K schematics. I would make the first call there myself and see if they will forward the schematic to you via email or to your service tech. ATI's phone number is: 323-278-0001. They have a general email option but in this situation I would use the direct approach. Can I ask, did you buy the unit from Fred's Sound of Music? Seems like they have the staff to do the work. I salivate from time to time over the idea of buying a B and K 200.2. I am a fan of MOSFET amps. My aging Hafler 9180 still operates perfectly with very "sweet" sound, but I have to admit the power in the 200.2 greatly tempts me!
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